For further reading on this subject. I highly recommend The Breaking Point, Sedan and the Fall of France 1940.
At 4:45 a.m. on September 1, 1939, the German army invaded Poland. By September 19, they forced the surrender of the last Polish army in the field. Eight days later, they completed mopping up the stubborn Polish resistance in Warsaw. The popular view is that Germany overwhelmed Poland with a massive mechanized attack that quickly […]
via Transition to Third-Generation Warfare — Weapons and Warfare